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Savin JA, Ávila-Ortíz CG, Leyva-Ramírez MA, Juaristi E. X-ray crystallographic structure of a novel enantiopure chiral isothiourea with potential applications in enantioselective synthesis. Acta Crystallogr C Struct Chem 2024; 80:15-20. [PMID: 38180035 DOI: 10.1107/s2053229623010781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/15/2023] [Indexed: 01/06/2024] Open
Abstract
The synthesis of a chiral isothiourea, namely, (4aR,8aR)-3-phenyl-4a,5,6,7,8,8a-hexahydrobenzo[4,5]imidazo[2,1-b]thiazol-9-ium bromide, C15H17N2S+·Br-, with potential organocatalytic and anti-inflammatory activity is reported. The preparation of the heterocycle of interest was carried out in two high-yielding steps. The hydrobromide salt of the isothiourea of interest provided suitable crystals for X-ray diffraction analysis, the results of which are reported. Salient observations from this analysis are the near perpendicular arrangement of the phenyl ring and the mean plane of the heterocycle. This conformational characteristic may be relevant with regard the stereoselectivity induced by the chiral isothiourea in asymmetric reactions. Furthermore, evidence was found for the existence of an S...Br- halogen bond.
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Affiliation(s)
- J Alejandro Savin
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados del IPN, Avenida IPN #2508, Col. San Pedro Zacatenco, 07360 Ciudad de México, Mexico
| | - C Gabriela Ávila-Ortíz
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados del IPN, Avenida IPN #2508, Col. San Pedro Zacatenco, 07360 Ciudad de México, Mexico
| | - Marco Antonio Leyva-Ramírez
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados del IPN, Avenida IPN #2508, Col. San Pedro Zacatenco, 07360 Ciudad de México, Mexico
| | - Eusebio Juaristi
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados del IPN, Avenida IPN #2508, Col. San Pedro Zacatenco, 07360 Ciudad de México, Mexico
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Jadeja J, Savant M. Synthesis of thiazolo[3,2-a]pyrimidine molecules, in vitro cytotoxic evaluation and molecular docking studies. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2023. [DOI: 10.1007/s13738-023-02772-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Tabibi T, Esmaeili AA. Efficient and green synthesis of novel hexahydro-5H-thiazolo[2',3':2,3]pyrimido[4,5-b]quinoline derivatives. Mol Divers 2023; 27:477-486. [PMID: 35526206 DOI: 10.1007/s11030-022-10439-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/07/2022] [Indexed: 02/08/2023]
Abstract
Herein, we report a catalyst-free, one-pot three-component reaction of 5-amino-2,3-dihydro-7H-thiazolo[3,2-a]pyrimidin-7-one, aromatic aldehyde, and dimedone in ethylene glycol as a green solvent at 100 °C for the easy access of hexahydro-5H-thiazolo[2',3':2,3]pyrimido[4,5-b]quinoline. Catalyst-free, green solvent, simple procedure, mild reaction conditions, easy work-up procedure, and good to excellent yields are the significant advantages of this protocol.
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Affiliation(s)
- Tooba Tabibi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, P.O.Box 9177948974, Mashhad, Iran
| | - Abbas Ali Esmaeili
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, P.O.Box 9177948974, Mashhad, Iran.
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Synthesis, molecular docking, and in-vitro studies of pyrimidine-2-thione derivatives as antineoplastic agents via potential RAS/PI3K/Akt/JNK inhibition in breast carcinoma cells. Sci Rep 2022; 12:22146. [PMID: 36550279 PMCID: PMC9780203 DOI: 10.1038/s41598-022-26571-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
In the present investigation, derivatives from (2-6) containing pyrimidine-2-thione moiety incorporated with different heterocycles such as pyrazoline, phenyl pyrazoline, and pyrimidine were synthesized using different methods. These pyrimidine-2-thione derivatives were evaluated in-silico for their capability to inhibit the H-RAS-GTP active form protein with insight to their pharmacokinetics properties. According to our findings, compound 5a was selected for in vitro studies as it has the in-silico top-ranked binding energy. Furthermore, compound 5a induced apoptosis to panels of cancer cell lines with the best IC50 on MCF-7 breast cancer cells (2.617 ± 1.6 µM). This effect was associated with the inhibition of phosphorylated RAS, JNK proteins, and PI3K/Akt genes expression. Thus, compound 5a has upregulated p21 gene and p53 protein levels. Moreover, 5a arrested the cell cycle progression at the sub-G0/G1 phase. In conclusion, the synthesized compound, 5a exhibited potent antineoplastic activity against breast cancer cell growth by targeting RAS/ PI3K/Akt/ JNK signaling cascades.
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Mariki AA, Anaeigoudari A, Zahedifar M, Pouramiri B, Ayati A, Lotfi S. Design, Green Synthesis, and Biological Evaluation of New Substituted Tetrahydropyrimidine Derivatives as Acetylcholinesterase Inhibitors. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1933102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ali akbar Mariki
- Student Research Committee, Jiroft University of Medical Science, Jiroft, Iran
| | - Akbar Anaeigoudari
- Department of Medicin, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Mahboobeh Zahedifar
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, Iran
| | - Behjat Pouramiri
- Student Research Committee, Jiroft University of Medical Science, Jiroft, Iran
| | - Adileh Ayati
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Safa Lotfi
- Department of Biotechnology, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
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Deng X, Zheng W, Jin C, Bai L. Synthesis of Novel 6-Aryloxy-4-chloro-2-phenylpyrimidines as Fungicides and Herbicide Safeners. ACS OMEGA 2020; 5:23996-24004. [PMID: 32984721 PMCID: PMC7513367 DOI: 10.1021/acsomega.0c03300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/01/2020] [Indexed: 05/02/2023]
Abstract
Fenclorim is a commercial herbicide safener with fungicidal activity used for chloroacetanilide herbicides, which might be suitable as a lead compound for screening novel fungicides. However, little has been reported so far on the structure-activity relationship of fungicidal activities of fenclorim or its analogues. Here, a series of 4-chloro-6-substituted phenoxy-2-phenylpyrimidine derivatives was synthesized by a substructure splicing route using fenclorim as a lead compound. The structures of synthesized derivatives were characterized by 1H NMR, 13C NMR, and HRMS. Their fungicidal and herbicide safening activities were then evaluated. The results revealed that compound 11 had the best fungicidal activity against Sclerotinia sclerotiorum and Thanatephorus cucumeris, which was better than that of the control pyrimethanil. Moreover, compounds 3, 5, and 25 exhibited excellent safening activities against fresh weight, plant height, and root length, respectively. Such activities were significantly improved when compared to fenclorim. In summary, these findings look promising for the preparation of new fungicides and herbicide safeners based on the structure of fenclorim.
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Design, Synthesis, Crystal Structure, and Fungicidal Activity of Two Fenclorim Derivatives. CRYSTALS 2020. [DOI: 10.3390/cryst10070587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two fenclorim derivatives (compounds 6 and 7) were synthesized by linking active sub-structures using fenclorim as the lead compound. The chemical structures of the two compounds were confirmed by NMR spectroscopy, high resolution mass spectrometry, and X-ray diffraction analysis. Their fungicidal activity against six plant fungal strains was tested. Compounds 6 and 7 both crystallized in the monoclinic system, with a P21/c space group (a = 8.4842(6) Å, b = 24.457(2) Å, c = 8.9940(6) Å, V = 1855.0(2) Å3, Z = 4) and Cc space group (a = 10.2347(7) Å, b = 18.3224(10) Å, c = 7.2447(4) Å, V = 1357.50(14) Å3, Z = 4), respectively. The crystal structure of compound 6 was stabilized by C–H···N and C–H···O hydrogen bonding interactions and N–H···N hydrogen bonds linked the neighboring molecules of compound 7 to form a three-dimensional framework. Compound 6 displayed the most excellent activity, which is much better than that of pyrimethanil against Botrytis cinerea in vivo. Additionally, compound 6 exhibited greater in vitro activity against Pseudoperonospora cubensis compared to that of pyrimethanil. Moreover, compound 7 exhibited strong fungicidal activity against Erysiphe cichoracearum at 50 mg/L in vitro, while pyrimethanil did not. Compounds 6 and 7 could be used as new pyrimidine fungicides in the future.
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Basiony EA, Hassan AA, Al-Amshany ZM, Abd-Rabou AA, Abdel-Rahman AAH, Hassan NA, El-Sayed WA. Synthesis and Cytotoxic Activity of New Thiazolopyrimidine Sugar Hydrazones and Their Derived Acyclic Nucleoside Analogues. Molecules 2020; 25:E399. [PMID: 31963649 PMCID: PMC7024276 DOI: 10.3390/molecules25020399] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 01/01/2023] Open
Abstract
New thienyl- or chlorophenyl-substituted thiazolopyrimidine derivatives and their derived sugar hydrazones incorporating acyclic d-galactosyl or d-xylosyl sugar moieties in addition to their per-O-acetylated derivatives were synthesized. Heterocyclization of the formed sugar hydrazones afforded the derived acyclic nucleoside analogues possessing the 1,3,4-oxadiazoline as modified nucleobase via acetylation followed by the cyclization process. The cytotoxic activity of the synthesized compounds was studied against human breast cancer MCF7 and MDA-MB-231 cell lines as well as human colorectal cancer HCT 116 and Caco-2 cell lines. High activities were revealed by compounds 1, 8, 10, 11, and 13 against Caco-2 and MCF7 cells in addition to moderate activities exhibited by other compounds against HCT116 or MDA-MB-231 cells.
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Affiliation(s)
- Ebtesam A. Basiony
- Faculty of Science, Chemistry Department, Menoufia University, Shibin EL-Kom 32511, Egypt; (E.A.B.); (A.A.-H.A.-R.)
| | - Allam A. Hassan
- Faculty of Science, Chemistry Department, Suez University, Suez 43511, Egypt;
- Applied Medical Science, Medical Laboratories Department, Shaqra University, Shaqra 11961, Saudi Arabia
| | - Zahra M. Al-Amshany
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21551, Saudi Arabia;
| | - Ahmed A. Abd-Rabou
- Hormones Department, Medical Research Division, National Research Centre, Giza 12511, Egypt;
- Stem Cells Lab, Center of Excellence for Advanced Sciences, National Research Centre, Giza 12511, Egypt
| | - Adel A.-H. Abdel-Rahman
- Faculty of Science, Chemistry Department, Menoufia University, Shibin EL-Kom 32511, Egypt; (E.A.B.); (A.A.-H.A.-R.)
| | - Nasser A. Hassan
- Pharmaceutical Science Department, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia
- Photochemistry Department, National Research Centre, Giza 12511, Egypt
| | - Wael A. El-Sayed
- Photochemistry Department, National Research Centre, Giza 12511, Egypt
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
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